Harrow-weeder.



P; B. BATEMAN. HARROW WEEDER. APPLICATION FILED AUG. 5, 1910.

Patented Mar. 21, 1911.

T FETCH IELINY B. BATEMAN, 0F DAYTON, WASHINGTON.

HARRO'W-WEEDER.

To all whom it may concern:

Be it known that I, PLINY B. BATEMAN, a citizen of the United States,residing at Dayton, in the county of Columbia and State of Washington,have invented new and useful Improvements in Harrow-VVeeders, of whichthe following is a specification.

This invention relates to harrows, and particularly to harrows of thetype adapted for both pulverizing the ground and removing weedstherefrom, the object of the invention being to provide a novel andsimple construction of harrow which is eifectually adapted for thesepurposes.

The invention consists of the features of construction, combination andarrangement of parts hereinafter fully described and claimed, referencebeing had to the accompanying drawing, showing a perspective view of myimproved harrow.

Referring to the drawing, my improved harrow comprises a series ofparallel transverse bars, of which any desired number may be used, andwhich are provided with teeth arranged in a prescribed manner. In thepresent instance, I have shown a series of five bars, 1, 2, 3, 4:, and5, which are of equal lengths but spaced varying distances apart andarranged in staggered relation and with their end portions out ofalinement, as herein fully described. The bars are connected adjacentone end by a side bar 6 bolted or otherwise secured thereto, and neartheir opposite ends the bars 2, 3, 4:, and

i 5, respectively are connected by a bar 7 arranged in parallel relationto the bar 6. The transverse bars are further connected by a couplingbrace bar 8 secured to the said bars 2, 3, 4 and 5 inwardly of the bar 7and extending forwardly at an outward angle connected at its forward endwith the ad acent end of the bar 1 outwardly beyond the plane of the bar7 The bar 8 thus acts as a diagonal brace as well as a connecting mediumto cooperate with the bars 6 and 7 in holding the transverse bars firmlyunited.

Each transverse bar 1, 2, etc., is provided with a longitudinal seriesof barrow teeth 9. These teeth, of which an equivalent number areemployed upon each transverse bar, pass downwardly through therespective bars at a lateral angle, being arranged preferably at anangle of 45 degrees to the vertical and extending obliquely toward oneside of the frame of the harrow.

Specification of Letters Patent.

Application filed August 5, 1910.

Patented Mar. 21, 1911.

Serial No. 575,658.

While the teeth are arranged equidistantly apart and accord in numberupon the trans verse bars, the latter are set relative to each other toso dispose the teeth that no more than two at any point will be arrangedin a row or in alinement with each other. To secure this result, thetransverse bars are not only spaced different distances apart, but arearranged with their ends out of alinement, so as to have a staggeredrelationship. For instance, the distance between the bars 1 and 2 in aharrow of ordinary size will be about eight inches, between the bars 2and 3 about 5-1- inches, between the bars 3 and 4t about 6 inches,between the bars 4 and 5 about 9:} inches. This arrangement spaces thebars a variable distance apart, so as to correspondingly vary thedistance between adjacent teeth thereon. In addition, it will beobserved that the transverse bars are alternately projected at oppositesides a greater or lesser distance from the central longitudinal line ofthe frame. Thus the bar 1 is set with its transverse center a little tothe left of the center line of the frame, the bar 2 with its transversecenter a little to the right of the longitudinal center line of theframe, while the bars 3, 4 and 5 are arranged similarly in regularorder, their distance of extension, however, at one side or the othervarying, as shown, so as to set the respective teeth thereof out ofregular rows or regular order of relationship.

By the construction described, it will be seen that while the teeth ofthe transverse bars are correspondingly disposed upon their bars, thusmaking the bars duplex in construction with consequent economy ofmanufacture, the arrangement of the bars described disposes thetransverse rows of teeth of the respective bars not only at variabledistances apart, but also disposes the teeth in staggered relation fromfront to rear of the machine. Hence in the operation of the harrow theteeth will engage the surface of the earth on lines between each otherand at variable distances to enable an effective crushing andpulverizing action to be obtained. Their disposition in such manner alsoprovides for the more efiect-ive extraction of weeds, as a weed missedby any one tooth will be gathered and extracted by another. Furthermore,by arranging the teeth in the inclined position specified, the weeds arecaused to wrap around or cling i? spaced relation and set with theirtransverse thereto, so that a Weed will be extracted which wouldordinarily be missed by a straight vertical tooth.

From the foregoing description, the con struction and advantages of myimproved harrow will be readily understood, as it Will be seen that aharrow of the type described which possesses the stated advantages maybe conveniently and economically manufactured.

Having thus fully described the invention What is claimed as new is 1. AharroW comprising a series of transverse parallel bars connected invariably centers alternately on opposite sides of the longitudinalcentral line of the harroW, said bars being provided with rows of teethar- I ranged by their described disposition in staggered order.

2. A harroW comprising a series of transverse parallel bars connected invariably spaced relation and set With their transverse centersalternately on opposite sides of the longitudinal central line of theharrovv, said bars being provided With uniformly spaced rows of teethinclined at an oblique angle laterally in one direction and disposed bythe described arrangement of the bars in staggered order.

In testimony whereof I afix my signature in presence of two Witnesses.

PLINY B. BATEMAN. lVitnesses V. G. SHEEHAN, J. E. BUTLER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

